A Co-Nanoparticles Modified Electrode for On-Site and Rapid Phosphate Detection in Hydroponic Solutions
文献类型：期刊论文
| 作者 | Xu, Feng1,2,3; Wang, Peng3; Bian, Shiyuan1,2; Wei, Yuliang1,2; Kong, Deyi1 ; Wang, Huanqin1
|
| 刊名 | SENSORS
 |
| 出版日期 | 2021 |
| 卷号 | 21 |
| 关键词 | phosphate buffer-free sensor Co-nanoparticles on-site and rapid hydroponic solutions |
| DOI | 10.3390/s21010299 |
| 通讯作者 | Kong, Deyi(kongdy@iim.ac.cn) |
| 英文摘要 | Conventional strategies for determining phosphate concentration is limited in efficiency due to the cost, time, and labor that is required in laboratory analysis. Therefore, an on-site and rapid detection sensor for phosphate is urgently needed to characterize phosphate variability in a hydroponic system. Cobalt (Co) is a highly sensitive metal that has shown a selectivity towards phosphate to a certain extent. A disposable phosphate sensor based on the screen-printed electrode (SPE) was developed to exploit the advantages of Co-nanoparticles. A support vector machine regression model was established to predict the concentration of phosphate in the hydroponic solutions. The results showed that Co-nanoparticles improve the detection limit of the sensor in the initial state. Meanwhile, the corrosion of Co-nanoparticles leads to a serious time-drift and instability of the electrodes. On the other hand, the coefficient of variation of the disposable phosphate detection chip is 0.4992%, the sensitivity is 33 mV/decade, and the linear range is 10(-1)-10(-4.56) mol/L. The R-2 and mean square error of the buffer-free sensor in the hydroponic solution are 0.9792 and 0.4936, respectively. In summary, the SPE modified by the Co-nanoparticles is a promising low-cost sensor for on-site and rapid measurement of the phosphate concentration in hydroponic solutions. |
| WOS关键词 | ION-SELECTIVE ELECTRODES ; TRANSIENT-RESPONSE ; SENSOR ; TONGUE ; PHOSPHORUS ; SYSTEM ; WATER ; SOIL ; UNIFORMITY ; ARRAY |
| 资助项目 | Natural Science Foundation of China[61673368] |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000606104600001 |
| 资助机构 | Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/119986]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kong, Deyi |
| 作者单位 | 1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230009, Anhui, Peoples R China 3.Virginia Commonwealth Univ, Dept Mech & Nucl Engn, Richmond, VA 23284 USA |
| 推荐引用方式 GB/T 7714 | Xu, Feng,Wang, Peng,Bian, Shiyuan,et al. A Co-Nanoparticles Modified Electrode for On-Site and Rapid Phosphate Detection in Hydroponic Solutions[J]. SENSORS,2021,21. |
| APA | Xu, Feng,Wang, Peng,Bian, Shiyuan,Wei, Yuliang,Kong, Deyi,&Wang, Huanqin.(2021).A Co-Nanoparticles Modified Electrode for On-Site and Rapid Phosphate Detection in Hydroponic Solutions.SENSORS,21. |
| MLA | Xu, Feng,et al."A Co-Nanoparticles Modified Electrode for On-Site and Rapid Phosphate Detection in Hydroponic Solutions".SENSORS 21(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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